Synthesis of block co-polymers and star-branched polymers consisting of conducting polyacetylene segments via ionic interaction to form ionic bonds
Synthesis of block co-polymers and star-branched polymers consisting of conducting polyacetylene segments via ionic interaction to form ionic bonds
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DOI：
10.1163/1568555042474068
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发表时间：
2004-01
影响因子：
1.6
通讯作者：
A. Hirao;Y. Karasawa;Tomoya Higashihara;Youliang Zhao;K. Sugiyama
中科院分区：
文献类型：
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作者：
A. Hirao;Y. Karasawa;Tomoya Higashihara;Youliang Zhao;K. Sugiyama
以1-（4-二甲氨基苯基）-1-苯乙烯或1，1-双（4-二甲氨基苯基）乙烯为引发剂，分别与仲丁基锂、枯基钾和萘钾等碳负离子反应，通过活性阴离子聚合反应合成了具有一定二甲氨基的链端和链内官能化聚（苯基乙烯基亚砜）。通过将聚苯基乙烯基亚砜与ω-羧基化聚苯乙烯进行化学计量反应，并对反应混合物进行热处理，合成了导电聚乙炔（PA）和聚苯乙烯链段通过离子相互作用形成离子键的新型嵌段共聚物和不对称星形支化聚合物。在这种嵌段共聚物和星形支化聚合物的流延膜中观察到具有导电PA层的层状形态。
Chain-end- and in-chain-functionalized poly(phenyl vinyl sulfoxide) with a definite number of dimethylamino groups have been synthesized by living anionic polymerization of phenyl vinyl sulfoxide with functionalized initiators prepared from either 1-(4-dimethylaminophenyl)-1-phenylethylene or 1,1-bis(4-dimethylaminophenyl)ethylene with carbanionic species such as sec-BuLi, cumylpotassium and potassium naphthalenide. By the stoichiometric reaction of the dimethylamine-chain-functionalized poly(phenyl vinyl sulfoxide) thus prepared with ω-carboxylated poly-styrene and subsequent thermal treatment of the reaction mixture, novel block co-polymer and asymmetric star-branched polymers consisting of conducting polyacetylene (PA) and polystyrene segments via ionic interaction to form ionic bonds have been synthesized. The lamellar morphologies with conducting PA layers were observed in the cast films of such block co-polymer and star-branched polymer.